rename config option
diff --git a/planetstack/plstackapi_config b/planetstack/plstackapi_config
index a716460..6abdaaf 100644
--- a/planetstack/plstackapi_config
+++ b/planetstack/plstackapi_config
@@ -30,4 +30,4 @@
 default_security_group=default
 
 [observer]
-pl_dependency_graph=/opt/planetstack/model-deps
+dependency_graph=/opt/planetstack/model-deps